html:is([data-project="supervision"], [data-project="secure-office"]) {
  --supervision-blue: #1762e8;
  --supervision-reading-width: min(100% - 64px, 1440px);
  overflow-x: clip;
}

html[data-project="supervision"] .case-wash {
  display: none;
}

html[data-project="supervision"] .case-story-chapter,
html[data-project="supervision"] .case-chapter-image {
  content-visibility: visible;
  contain-intrinsic-size: none;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-detail-nav + .case-story-intro {
  width: min(100% - 64px, 1180px);
  margin-inline: auto;
  padding: clamp(88px, 10vw, 132px) 0 clamp(84px, 9vw, 120px);
  background: transparent;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro > header {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 8px 24px;
  align-items: start;
  margin: 0 0 clamp(48px, 6vw, 76px);
  padding-top: 24px;
  border-top: 1px solid #dfe6ef;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro > header > span {
  grid-row: 1 / 3;
  display: block;
  width: auto;
  height: auto;
  border: 0;
  border-radius: 0;
  color: var(--supervision-blue);
  font: 500 12px/1.4 "DM Mono", monospace;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro > header > p {
  margin: 0 0 8px;
  color: #7790b2;
  font: 500 11px/1.5 "DM Mono", monospace;
  letter-spacing: .14em;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro > header h2 {
  margin: 0;
  color: #17365e;
  font: 400 clamp(34px, 4vw, 56px)/1.12 "Noto Sans SC", sans-serif;
  letter-spacing: -.035em;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro__body {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: clamp(60px, 9vw, 120px);
  align-items: start;
  margin-left: 112px;
  padding-bottom: clamp(48px, 6vw, 72px);
  border-bottom: 1px solid #dfe6ef;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro__body > p {
  margin: 0;
  color: #294b74;
  font: 400 clamp(19px, 2vw, 26px)/1.8 "Noto Sans SC", sans-serif;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro__body > p::before {
  display: block;
  margin-bottom: 18px;
  color: #8295ae;
  font: 500 10px/1.4 "DM Mono", monospace;
  letter-spacing: .14em;
  content: "PROJECT CHALLENGE / 核心挑战";
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro__body aside {
  padding: 4px 0 4px 24px;
  border-top: 0;
  border-left: 2px solid var(--supervision-blue);
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro__body aside small {
  color: var(--supervision-blue);
  font: 500 10px/1.4 "DM Mono", monospace;
  letter-spacing: .14em;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro__body aside p {
  margin: 16px 0 0;
  color: #526b89;
  font-size: 14px;
  line-height: 1.95;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  width: min(100% - 64px, 1180px);
  margin: 0 auto clamp(96px, 12vw, 154px);
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions > header {
  padding-right: 42px;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions small {
  color: var(--supervision-blue);
  font: 500 11px/1.5 "DM Mono", monospace;
  letter-spacing: .13em;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions h2 {
  margin: 18px 0 0;
  color: #17365e;
  font: 400 clamp(28px, 3vw, 40px)/1.25 "Noto Sans SC", sans-serif;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions > div {
  border-top: 1px solid #dfe6ef;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions article {
  display: grid;
  grid-template-columns: 42px minmax(190px, .72fr) minmax(0, 1fr);
  gap: 22px;
  padding: 26px 0;
  border-bottom: 1px solid #dfe6ef;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions article > span {
  color: var(--supervision-blue);
  font: 500 11px/1.5 "DM Mono", monospace;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions h3 {
  margin: 0;
  color: #1b3658;
  font-size: 18px;
  line-height: 1.6;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions article p {
  margin: 0;
  color: #526b89;
  font-size: 14px;
  line-height: 1.85;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter {
  padding: clamp(60px, 7vw, 92px) 0;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter > header {
  display: none;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter > header,
html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter__content {
  width: var(--supervision-reading-width);
  max-width: none;
  margin-inline: auto;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-images {
  grid-column: 1 / -1;
  display: grid;
  gap: clamp(18px, 3vw, 48px);
  margin-top: 0;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: clamp(18px, 3vw, 38px) auto clamp(28px, 4vw, 52px);
  text-align: center;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #6f89aa;
  font: 500 10px/1 "DM Mono", monospace;
  letter-spacing: .18em;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header span::before,
html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header span::after {
  width: 28px;
  height: 1px;
  background: #cbd8e8;
  content: "";
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header h3 {
  margin: 0;
  color: #1b3658;
  font: 400 clamp(25px, 3vw, 36px)/1.25 "Noto Sans SC", sans-serif;
  letter-spacing: .08em;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header::after {
  width: 5px;
  height: 5px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--supervision-blue);
  box-shadow: 0 0 0 5px rgb(23 98 232 / 8%);
  content: "";
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image figure {
  margin: 0;
  border: 0;
  outline: 0;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image.is-scroll-slide-ready > header,
html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image.is-scroll-slide-ready > figure {
  will-change: transform, opacity;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image.is-scroll-slide-ready > header {
  opacity: var(--slide-heading-progress, 0);
  transform: translateY(calc((1 - var(--slide-heading-progress, 0)) * 24px));
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image.is-scroll-slide-ready > figure {
  opacity: var(--slide-figure-progress, 0);
  transform: translateY(calc((1 - var(--slide-figure-progress, 0)) * 72px));
}

html[data-project="supervision"] .case-chapter-image.is-scroll-slide-ready > header,
html[data-project="supervision"] .case-chapter-image.is-scroll-slide-ready > figure {
  opacity: 1;
  transform: none;
  will-change: auto;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-scroll-progress {
  position: fixed;
  z-index: 20;
  right: 20px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border: 0;
  border-radius: 999px;
  background: rgb(255 255 255 / 86%);
  color: #8b9aac;
  font: 500 10px/1 "DM Mono", monospace;
  letter-spacing: .08em;
  box-shadow: 0 8px 30px rgb(35 66 107 / 8%);
  backdrop-filter: blur(10px);
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-scroll-progress i {
  width: 38px;
  height: 1px;
  overflow: hidden;
  background: #dfe6ef;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-scroll-progress i::after {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--supervision-blue);
  transform: scaleX(var(--supervision-slide-progress, .08));
  transform-origin: left center;
  transition: transform .35s ease;
  content: "";
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-images img {
  display: block;
  width: 100%;
  height: auto;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter__content > .case-html-block,
html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter__content > .case-flow,
html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter__content > .case-system-map,
html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter__content > .case-capabilities,
html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter__content > .case-metrics,
html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter__content > .case-story-outcome {
  display: none;
}

@media (max-width: 760px) {
  html:is([data-project="supervision"], [data-project="secure-office"]) { --supervision-reading-width: calc(100% - 24px); }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-detail-nav + .case-story-intro { width: calc(100% - 32px); padding: 68px 0 72px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro > header { grid-template-columns: 36px 1fr; gap: 6px 12px; margin-bottom: 38px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro > header h2 { font-size: 34px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro__body { grid-template-columns: 1fr; gap: 38px; margin-left: 0; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-intro__body > p { font-size: 18px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter { padding: 48px 0; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-images { gap: 18px; margin-top: 0; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header { gap: 10px; margin-bottom: 26px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header h3 { font-size: 24px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-scroll-progress { right: 12px; bottom: 12px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions { grid-template-columns: 1fr; width: calc(100% - 32px); gap: 34px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions > header { padding-right: 0; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions article { grid-template-columns: 34px minmax(0, 1fr); gap: 12px 16px; }
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-decisions article p { grid-column: 2; font-size: 16px; }
}

/* These projects are presented as continuous image walkthroughs. Avoid stacking
   the generic chapter padding and margin around every image group. */
html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter {
  margin-bottom: 0;
  padding-block: 0;
}

html:is([data-project="supervision"], [data-project="secure-office"]) .case-story-chapter + .case-story-chapter {
  margin-top: clamp(24px, 3vw, 48px);
}

@media (prefers-reduced-motion: reduce) {
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > header,
  html:is([data-project="supervision"], [data-project="secure-office"]) .case-chapter-image > figure {
    opacity: 1 !important;
    transform: none !important;
  }

  html:is([data-project="supervision"], [data-project="secure-office"]) .case-scroll-progress i::after {
    transition: none;
  }
}